Slipper sock



FIG. 1 is a front perspective view of the first embodiment of the slipper sock embodying my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is bottom plan view. 

The ornamental design for the slipper sock, as shown and described. 